Gray Tractor
Gray Tractor 18-30
The Gray Tractor 18-30 is a standard-tread tractor built in 1917 by Gray Tractor in Minneapolis, Minnesota, USA. It features a Waukesha 7.0L 4-cylinder liquid-cooled inline gasoline engine rated at 30 hp (estimated) with a 2-speed gear transmission. The tractor has a 3x1 drum drive with manual steering and an open operator station. It weighs 5950 lbs and rides on 40x8 front and 54x54 rear steel tires. The tractor was originally priced at $1,750 in 1915 and is capable of pulling 4 plows. The belt pulley diameter is 11 inches with a width of 7 inches.
Power30 hp[B]
Founded1917
Model18-30
Technical Specifications
Detailed specifications and technical data for Gray Tractor 18-30
Power
| Plows | 4 |
|---|---|
| Belt (claimed) | 30 hp (22.4 kW) |
| Drawbar (claimed) | 18 hp (13.4 kW) |
Tires
| Rear tire | 54x54 steel |
|---|---|
| Front tire | 40x8 steel |
Engine
| Make | Waukesha |
|---|---|
| Type | gasoline |
| Cooling | liquid-cooled inline |
| Cylinders | 4-cylinder |
| Fuel tank | 34 gal (128.7 L) |
| Rated RPM | 850 |
| Bore/Stroke | 4.50x6.75 inches (114 x 171 mm) |
| Displacement | 429 ci (7.0 L) |
Dimensions
| Width | 78 inches (198 cm) |
|---|---|
| Height | 63 inches (160 cm) |
| Length | 174 inches (441 cm) |
| Weight | 5950 lbs (2698 kg) |
Mechanical
| Drive | 3x1 drum drive |
|---|---|
| Steering | Manual steering |
| Operator station | Open operator station |
Production
| Type | Standard-tread tractor |
|---|---|
| Year | 1917 |
| Built in | Minneapolis, Minnesota, USA |
| Manufacturer | Gray Tractor |
| Original price | $1,750 in 1915 |
Belt Pulley
| Width | 7 inches (17 cm) |
|---|---|
| Diameter | 11 inches (27 cm) |
Transmission
| Type | gear |
|---|---|
| Gears | 2 forward and 1 reverse |
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